CN202065481U - Exhaust tail valve - Google Patents
Exhaust tail valve Download PDFInfo
- Publication number
- CN202065481U CN202065481U CN2011201716684U CN201120171668U CN202065481U CN 202065481 U CN202065481 U CN 202065481U CN 2011201716684 U CN2011201716684 U CN 2011201716684U CN 201120171668 U CN201120171668 U CN 201120171668U CN 202065481 U CN202065481 U CN 202065481U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- blind hole
- flap
- pass
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an exhaust tail valve, which has a simple structure and a good sealing performance and is convenient to maintain. The exhaust tail valve comprises a valve body, a valve stem and a valve flap. The valve body is provided with a blind hole for installation of the valve stem, the bottom of the blind hole is provided with a flow discharging channel penetrating through the valve body, the blind hole and the valve stem are connected through threads, a sealing component is arranged between the valve stem and the inner wall of the blind hole, the end in the blind hole and between the sealing component and the flow discharging channel is provided with a diversion chamber capable of being communicated with the flow discharging channel, the valve stem is also provided with a fluid channel penetrating through the valve stem, one end of the fluid channel is arranged on the diversion chamber and is communicated with the diversion chamber, the other end of the fluid channel is arranged on the other side of the diversion chamber opposite to the sealing component, and the valve flap is arranged between the valve stem and the flow discharging channel and is fixedly connected and linked with the valve stem. The exhaust tail valve has a simple structure and low requirements for the manufacturing process, the manufacturing accuracy can be ensured, and the sealing performance can be improved relatively. Moreover, the maintenance and replacement of the exhaust tail valve can be facilitated due to the simple structure.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of exhaust end valve.
Background technique
Proposition along with food and pharmaceutical production field country new standard, therefore the hygienic requirements of each food and medicine is endowed new requirement, adopt small-bore ball valve as exhaust end valve on the tank body in the traditional mode of production, particularly in antibiotics and microbial fermentation system, can not satisfy the demand of new standard.Mainly there is following a few point defect in small-bore ball valve: 1, circular spool and the sealing surface in the valve pocket is the leakage rate that allows to exist 6.3mm3/s in present production standard in the small-bore ball valve, the spheroid precision of spool processing generally can not surpass present test stone, so cause bacterial infection easily as the exhaust end valve in antibiotics and the microbial fermentation system.2, the seal ring in the small-bore ball valve is less, in higher temperature and operating process, damage easily, thus the risk of raising bacterial infection.3, in order to guarantee the sealing of small-bore ball valve, need often to change seal ring wherein, but the structure of small-bore ball valve is complicated, and needs integral demounting to change, be inconvenient to safeguard.4, the production and processing of small-bore ball valve is loaded down with trivial details, the requirement on machining accuracy height of spherical valve core especially, and manufacture cost is higher.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is a kind of simple in structure that the utility model provides, good seal performance, exhaust end valve easy to maintenance.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of exhaust end valve, it is characterized in that: include valve body, valve rod and flap, described valve body is provided with the blind hole of installing for valve rod, the blind hole bottom offers the current by pass that runs through valve body, offer internal thread on the blind hole inwall, offer on the valve rod outer wall and the suitable outside thread of described internal thread, also be provided with between valve rod and blind hole inwall and constitute the Sealing that is sealed and matched between valve rod and blind hole inwall, be positioned at end between Sealing and current by pass in the blind hole and also be provided with the diversion cavity that can be conducted with current by pass, also offer the fluid passage of running through valve rod on the valve rod, one end of this fluid passage is positioned at the diversion cavity place and is conducted with diversion cavity, the other end is positioned at the opposite side of diversion cavity with respect to Sealing place side, flap is positioned between valve rod and current by pass, and flap is fixedlyed connected linkage with valve rod, when the exhaust end valve is in closed state, flap support be located at the open end of current by pass and constitute diversion cavity and current by pass between closure, when the exhaust end valve was in opening state, flap was removed and to be cooperated with the conflict of current by pass upper open end and constitute conducting between diversion cavity and current by pass.
Adopt technique scheme, design difficulty with respect to spherical valve core in the conventional ball valve, the utility model is simple in structure, the difficulty of preparation process is less demanding, thereby guaranteed the making precision, improved self seal relatively, and simple structure has made things convenient for also to maintenance of the present utility model and replacing.
Of the present utility modelly further be set to: described blind hole is cylindric, blind hole bottom current by pass opening is provided with valve seat, flap and valve base chamber also are provided with sealing gasket, described Sealing is a seal ring, also be provided with between valve rod and blind hole inwall for seal ring and install the seal groove of usefulness, seal ring respectively and valve rod and the blind hole inwall is inconsistent and constitute being sealed and matched between valve rod and blind hole inwall.
Adopt technique scheme, sealing gasket is bigger with respect to the structure of seal ring in the conventional ball valve, and it is thicker that thickness also can design as required, and seal ring then can not reach easily, so longer service life of the present utility model, and sealing effect is also better.
Of the present utility modelly further be set to: described valve rod is a column, the other end of flap place end is provided with inserting column on the valve rod, described fluid passage includes fluid input and fluid output, fluid input is opened on the inserting column and with the outside and is conducted, and fluid output is opened on the valve rod end between Sealing and flap and is conducted with diversion cavity.
Adopt technique scheme, the setting of inserting column makes that fluid input can be more easily and the conducting of pegging graft of fed sheet of a media such as outer conduit, guarantees the stability of fluid communication.
Of the present utility modelly further be set to: also include handwheel, this handwheel is fixed on the valve rod and with valve rod and is linked again.
Adopt technique scheme, the setting of handwheel can realize the rotation of valve rod more easily, easily, thus with the moment that valve rod circumferentially rotates be converted into stem shaft to displacement.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment's a sectional view.
Fig. 2 is the sectional view of the utility model embodiment valve body.
Fig. 3 is the sectional view of the utility model embodiment valve rod and flap.
Embodiment
As Figure 1-3, present embodiment includes valve body 1, columned valve rod 2, flap 3 and handwheel 4, described valve body 1 is provided with the columned blind hole of installing for valve rod 2 11, the central part of blind hole 11 bottoms offers the current by pass 12 that runs through valve body 1, this current by pass 12 axially is provided with along valve body 1, and blind hole 11 bottom current by pass 12 openings are provided with valve seat 13.Offer internal thread 14 on blind hole 11 inwalls, offer the outside thread 21 suitable on valve rod 2 outer walls, also be provided with between valve rod 2 and blind hole 11 inwalls and constitute the Sealing that is sealed and matched between valve rod 2 and blind hole 11 inwalls with described internal thread 14.The sealing part is a seal ring 5, also is provided with on valve rod 2 perisporiums for seal ring 5 and installs the seal groove 22 of usefulness, and seal ring 5 respectively and valve rod 2 and blind hole 11 inwalls are inconsistent and constitute being sealed and matched between valve rod 2 and blind hole 11 inwalls.The end that is positioned at 12 of seal ring 5 and current by pass in the blind hole 11 also is provided with the diversion cavity 6 that can be conducted with current by pass 12, also offer the fluid passage 23 of running through valve rod 2 on the valve rod 2, one end of this fluid passage 23 is positioned at diversion cavity 6 places and is conducted with diversion cavity 6, the other end is positioned at the opposite side of diversion cavity 6 with respect to seal ring 5 place sides, flap 3 is positioned at 12 of valve rod 2 and current by pass, and flap 3 is fixedlyed connected linkage with valve rod 2, also be provided with sealing gasket 31 towards valve seat 13 place end faces on the flap 3.Handwheel 4 is fixed on the valve rod 2 and with valve rod 2 and is linked, and can realize the rotation of valve rod 2 more easily, easily, thereby the moments that valve rod 2 circumferentially rotates are converted into the axial displacement of valve rod 2.Wherein, the other end of flap 3 place ends is provided with inserting column 24 on the valve rod 2, described fluid passage 23 includes fluid input 231 and fluid output 232, fluid input 231 is opened on the inserting column 24 and with the outside and is conducted, and fluid output 232 is opened in the end of 3 of seal rings 5 and flap on the valve rod 2 and is conducted with diversion cavity 6.When by handwheel 4 rotation valve rods, make valve rod 2 be with flap 3 close to valve seat 13, when the sealing gasket on the flap 3 31 pressed on the valve seat 13 fully, the exhaust end valve was in closed state, constituted the closure of 12 of diversion cavity 6 and current by pass this moment; When backward rotation handwheel 4, make that the exhaust end valve was in opening state when valve rod 2 drive flaps 3 were separated with valve seat 13, sealing gasket 31 is removed and is cooperated with the conflict of valve seat 13 on the flap 3, has constituted the conducting of 12 of diversion cavity 6 and current by pass this moment.In addition, but valve rod 2 and flap 3 split settings also can be wholely set.
In the utility model, design difficulty with respect to spherical valve core in the conventional ball valve, the utility model is simple in structure, the difficulty of preparation process is less demanding, thereby guaranteed the making precision, improved self seal relatively, and simple structure has made things convenient for also to maintenance of the present utility model and replacing.Wherein, sealing gasket 31 is bigger with respect to the structure of seal ring in the conventional ball valve 5, and it is thicker that thickness also can design as required, and seal ring 5 then can not reach easily, so longer service life of the present utility model, and sealing effect is also better.The setting of inserting column 24 makes that fluid input 231 can be more easily and the conducting of pegging graft of fed sheet of a media such as outer conduit, guarantees the stability of fluid communication.The utility model can also have other mode of executions, and the technological scheme that equal replacement of all employings or equivalent transformation form all drops within the claimed scope of the utility model.
Claims (4)
1. exhaust end valve, it is characterized in that: include valve body, valve rod and flap, described valve body is provided with the blind hole of installing for valve rod, the blind hole bottom offers the current by pass that runs through valve body, offer internal thread on the blind hole inwall, offer on the valve rod outer wall and the suitable outside thread of described internal thread, also be provided with between valve rod and blind hole inwall and constitute the Sealing that is sealed and matched between valve rod and blind hole inwall, be positioned at end between Sealing and current by pass in the blind hole and also be provided with the diversion cavity that can be conducted with current by pass, also offer the fluid passage of running through valve rod on the valve rod, one end of this fluid passage is positioned at the diversion cavity place and is conducted with diversion cavity, the other end is positioned at the opposite side of diversion cavity with respect to Sealing place side, flap is positioned between valve rod and current by pass, and flap is fixedlyed connected linkage with valve rod, when the exhaust end valve is in closed state, flap support be located at the open end of current by pass and constitute diversion cavity and current by pass between closure, when the exhaust end valve was in opening state, flap was removed and to be cooperated with the conflict of current by pass upper open end and constitute conducting between diversion cavity and current by pass.
2. exhaust end valve according to claim 1, it is characterized in that: described blind hole is cylindric, blind hole bottom current by pass opening is provided with valve seat, flap and valve base chamber also are provided with sealing gasket, described Sealing is a seal ring, also be provided with between valve rod and blind hole inwall for seal ring and install the seal groove of usefulness, seal ring respectively and valve rod and the blind hole inwall is inconsistent and constitute being sealed and matched between valve rod and blind hole inwall.
3. exhaust end valve according to claim 2, it is characterized in that: described valve rod is a column, the other end of flap place end is provided with inserting column on the valve rod, described fluid passage includes fluid input and fluid output, fluid input is opened on the inserting column and with the outside and is conducted, and fluid output is opened on the valve rod end between Sealing and flap and is conducted with diversion cavity.
4. according to claim 1 or 2 or 3 described exhaust end valves, it is characterized in that: also include handwheel, this handwheel is fixed on the valve rod and with valve rod and is linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201716684U CN202065481U (en) | 2011-05-26 | 2011-05-26 | Exhaust tail valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201716684U CN202065481U (en) | 2011-05-26 | 2011-05-26 | Exhaust tail valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065481U true CN202065481U (en) | 2011-12-07 |
Family
ID=45059344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201716684U Expired - Fee Related CN202065481U (en) | 2011-05-26 | 2011-05-26 | Exhaust tail valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111108317A (en) * | 2017-09-23 | 2020-05-05 | 贺德克配件有限公司 | Valve device |
-
2011
- 2011-05-26 CN CN2011201716684U patent/CN202065481U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111108317A (en) * | 2017-09-23 | 2020-05-05 | 贺德克配件有限公司 | Valve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20190526 |